随机介质理论预测斜巷道开挖引起的地表变形  

PREDICTION OF GROUND SURFACE MOVEMENT AND DEFORMATION OF INCLINED TUNNEL EXCAVATION BASED ON STOCHASTIC MEDIUM THEORY

作　　者：李亚兰[1] 宋飞[1] 赵法锁[1] LI Yalan;SONG Fei;ZHAO Fasuo(School of Geological Engineering and Geomatics,Chang an University, Xi an 710054)

机构地区：[1]长安大学地质工程与测绘学院,西安710054

出　　处：《工程地质学报》2018年第5期1384-1389,共6页Journal of Engineering Geology

基　　金：长安大学中央高校基本科研业务费专项资金项目(310826161006)资助

摘　　要：针对斜巷道开挖会对地表产生不同的地表移动与变形问题,采用随机介质理论,推导出了巷道半圆拱形开挖断面引起的地表移动与变形公式。分别对一斜巷道的不同剖面位置进行了地表移动与变形的计算,得到了不同位置地表的最大下沉、最大倾斜、最大曲率及最大水平变形值,分析了不同巷道位置对地表的影响范围。计算结果可为电厂工程的规划设计提供一定的指导。Aiming at different surface movement and deformation can be produced by the inclined tunnel excavation.The formulas of ground surface movement and deformation due to semicircle-tunnel excavation have been derived by using stochastic medium theory.By calculating the ground surface movement and deformation at different sections of inclined tunnel,the surface of maximum subsidence,horizontal displacement,the maximum value of tilt and maximum curvature are obtained.The influence of surface movement and deformation is analyzed at different positions of inclined tunnel.Result may provide reference for the planning of the electric power plant.

关 键 词：随机介质理论 斜巷道 地表移动与变形 

分 类 号：TD325[矿业工程—矿井建设]